Hello and welcome to the forum Erry! Do you know exactly what needs to get done to the car? We have very helpful step-by-step guides for various repairs for the W124 if you're able to do the work yourself (link below). Please let us know if you have any questions or if we can assist with any part needs.

Mercedes-Benz E-Class W124 (1987-1995) Technical Articles - 300TE 24, 300CE 24, 300E 24, 300CE, 280E, 300E2.8, E280, 320TE, E320 - Pelican Parts